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Tool/software:
I am looking for to operate from 0V input till close to Vdd. Actually I am using LMP7702 for baffa. But at the very low input voltage suvh as a few mv, the output didn't get exactly same voltage as input.
I actually don't need to operate till Vdd (close would be fine.) So, please advise or suggest any operational amp. (Need higher Band width would be appreciate.)
BEST REGARDS
Hironari
Hi Hironari-san,
But at the very low input voltage suvh as a few mv, the output didn't get exactly same voltage as input.
The LMP7702 has typical output voltage from 30mV up to 170mV (worst case), and it is not suited for low voltage buffer circuit.
Without knowing your application, my guess is that OPA396/OPA392/OPA391 may be suitable for a buffer application. we have others as well.
https://www.ti.com/lit/ds/symlink/opa392.pdf
If you have other questions, please let me know.
Best,
Raymond
Mr. Raymond
Thank you very much your prompt reply.
I will try with opa392 after I get it.
Right now, I have OPA376 in my hand. If any problem/concern for OPA376, please let me know.
BEST REGARDS,
Hironari
Hi Hironari,
OPA376 will be ok as well for the low signal buffering.
Best,
Raymond